Star · M0
Gl 842.2
Gl 842.2 is a main-sequence star of spectral type M0 in the constellation Cepheus, 71.4 light-years from the Sun.
| Other names | HIP 108467 |
|---|---|
| Constellation | Cepheus |
| Distance | 71.4 light-years (21.9 pc) |
| Apparent magnitude | magnitude 10.56 |
| Absolute magnitude | magnitude 8.86 |
| Spectral type | M0 |
| Surface temperature | 5,460 K |
| Luminosity | 0.0286 L☉ |
| Radius | 0.189 R☉ |
| Mass | 0.404 M☉ (estimated) |
| Right ascension (J2000) | 21h 58m 24.4s |
| Declination (J2000) | +75° 35′ 21″ |
| Space velocity (relative to the Sun) | 30.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.56. Visible from the whole Northern Hemisphere and south to latitude 14° S. North of latitude 14° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1955. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around Gl 842.2, the Sun would look like a star of magnitude 6.53, in the direction where our sky has the constellation Carina. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 828.5 3.73 light-years
- GJ 1266 6.85 light-years
- WISE J213512.63+731236.8 8.67 light-years
- GJ 4170 10.1 light-years
- TOI-6324 10.7 light-years
- 2MASS J23140244+6939368 11.4 light-years
- CWISE J201221.32+701740.2 11.6 light-years
- HIP 115147 11.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.